1508 lines
46 KiB
C
1508 lines
46 KiB
C
/*
|
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* tkButton.c --
|
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*
|
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* This module implements a collection of button-like
|
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* widgets for the Tk toolkit. The widgets implemented
|
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* include labels, buttons, check buttons, and radio
|
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* buttons.
|
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*
|
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* Copyright (c) 1990-1994 The Regents of the University of California.
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* Copyright (c) 1994-1995 Sun Microsystems, Inc.
|
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*
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* See the file "license.terms" for information on usage and redistribution
|
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* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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*
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* SCCS: @(#) tkButton.c 1.144 97/07/31 09:04:57
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*/
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#include "tkButton.h"
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#include "default.h"
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#ifdef BGLK_CODE
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# define STk_tcl_setvar SCM_tcl_setvar
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# define STk_tcl_getvar SCM_tcl_getvar
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# define STk_STRINGIFY SCM_STRINGIFY
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#endif
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/*
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* Class names for buttons, indexed by one of the type values above.
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*/
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static char *classNames[] = {"Label", "Button", "Checkbutton", "Radiobutton"};
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/*
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* The class procedure table for the button widget.
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*/
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static int configFlags[] = {LABEL_MASK, BUTTON_MASK,
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CHECK_BUTTON_MASK, RADIO_BUTTON_MASK};
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/*
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* Information used for parsing configuration specs:
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*/
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Tk_ConfigSpec tkpButtonConfigSpecs[] = {
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{TK_CONFIG_BORDER, "-activebackground", "activeBackground", "Foreground",
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DEF_BUTTON_ACTIVE_BG_COLOR, Tk_Offset(TkButton, activeBorder),
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BUTTON_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK
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|TK_CONFIG_COLOR_ONLY},
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{TK_CONFIG_BORDER, "-activebackground", "activeBackground", "Foreground",
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DEF_BUTTON_ACTIVE_BG_MONO, Tk_Offset(TkButton, activeBorder),
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BUTTON_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK
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|TK_CONFIG_MONO_ONLY},
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{TK_CONFIG_COLOR, "-activeforeground", "activeForeground", "Background",
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DEF_BUTTON_ACTIVE_FG_COLOR, Tk_Offset(TkButton, activeFg),
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BUTTON_MASK|TK_CONFIG_COLOR_ONLY},
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{TK_CONFIG_COLOR, "-activeforeground", "activeForeground", "Background",
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DEF_CHKRAD_ACTIVE_FG_COLOR, Tk_Offset(TkButton, activeFg),
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CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|TK_CONFIG_COLOR_ONLY},
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{TK_CONFIG_COLOR, "-activeforeground", "activeForeground", "Background",
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DEF_BUTTON_ACTIVE_FG_MONO, Tk_Offset(TkButton, activeFg),
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BUTTON_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK
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|TK_CONFIG_MONO_ONLY},
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{TK_CONFIG_ANCHOR, "-anchor", "anchor", "Anchor",
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DEF_BUTTON_ANCHOR, Tk_Offset(TkButton, anchor), ALL_MASK},
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{TK_CONFIG_BORDER, "-background", "background", "Background",
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DEF_BUTTON_BG_COLOR, Tk_Offset(TkButton, normalBorder),
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ALL_MASK | TK_CONFIG_COLOR_ONLY},
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{TK_CONFIG_BORDER, "-background", "background", "Background",
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DEF_BUTTON_BG_MONO, Tk_Offset(TkButton, normalBorder),
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ALL_MASK | TK_CONFIG_MONO_ONLY},
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{TK_CONFIG_SYNONYM, "-bd", "borderWidth", (char *) NULL,
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(char *) NULL, 0, ALL_MASK},
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{TK_CONFIG_SYNONYM, "-bg", "background", (char *) NULL,
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(char *) NULL, 0, ALL_MASK},
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{TK_CONFIG_BITMAP, "-bitmap", "bitmap", "Bitmap",
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DEF_BUTTON_BITMAP, Tk_Offset(TkButton, bitmap),
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ALL_MASK|TK_CONFIG_NULL_OK},
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{TK_CONFIG_PIXELS, "-borderwidth", "borderWidth", "BorderWidth",
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DEF_BUTTON_BORDER_WIDTH, Tk_Offset(TkButton, borderWidth), ALL_MASK},
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#ifdef SCM_CODE
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{TK_CONFIG_CLOSURE, "-command", "command", "Command",
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#else
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{TK_CONFIG_STRING, "-command", "command", "Command",
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#endif
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DEF_BUTTON_COMMAND, Tk_Offset(TkButton, command),
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BUTTON_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|TK_CONFIG_NULL_OK},
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{TK_CONFIG_ACTIVE_CURSOR, "-cursor", "cursor", "Cursor",
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DEF_BUTTON_CURSOR, Tk_Offset(TkButton, cursor),
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ALL_MASK|TK_CONFIG_NULL_OK},
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{TK_CONFIG_UID, "-default", "default", "Default",
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DEF_BUTTON_DEFAULT, Tk_Offset(TkButton, defaultState), BUTTON_MASK},
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{TK_CONFIG_COLOR, "-disabledforeground", "disabledForeground",
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"DisabledForeground", DEF_BUTTON_DISABLED_FG_COLOR,
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Tk_Offset(TkButton, disabledFg), BUTTON_MASK|CHECK_BUTTON_MASK
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|RADIO_BUTTON_MASK|TK_CONFIG_COLOR_ONLY|TK_CONFIG_NULL_OK},
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{TK_CONFIG_COLOR, "-disabledforeground", "disabledForeground",
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"DisabledForeground", DEF_BUTTON_DISABLED_FG_MONO,
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Tk_Offset(TkButton, disabledFg), BUTTON_MASK|CHECK_BUTTON_MASK
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|RADIO_BUTTON_MASK|TK_CONFIG_MONO_ONLY|TK_CONFIG_NULL_OK},
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#ifdef STk_CODE
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{TK_CONFIG_ENV, "-environment", "environment", "Environment",
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DEF_BUTTON_ENV, Tk_Offset(TkButton, env),
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ALL_MASK},
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#endif
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{TK_CONFIG_SYNONYM, "-fg", "foreground", (char *) NULL,
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(char *) NULL, 0, ALL_MASK},
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{TK_CONFIG_FONT, "-font", "font", "Font",
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DEF_BUTTON_FONT, Tk_Offset(TkButton, tkfont),
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ALL_MASK},
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{TK_CONFIG_COLOR, "-foreground", "foreground", "Foreground",
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DEF_BUTTON_FG, Tk_Offset(TkButton, normalFg), LABEL_MASK|BUTTON_MASK},
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{TK_CONFIG_COLOR, "-foreground", "foreground", "Foreground",
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DEF_CHKRAD_FG, Tk_Offset(TkButton, normalFg), CHECK_BUTTON_MASK
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|RADIO_BUTTON_MASK},
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#ifdef SCM_CODE
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{TK_CONFIG_SINT, "-height", "height", "Height",
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#else
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{TK_CONFIG_STRING, "-height", "height", "Height",
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#endif
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DEF_BUTTON_HEIGHT, Tk_Offset(TkButton, heightString), ALL_MASK},
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{TK_CONFIG_BORDER, "-highlightbackground", "highlightBackground",
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"HighlightBackground", DEF_BUTTON_HIGHLIGHT_BG,
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Tk_Offset(TkButton, highlightBorder), ALL_MASK},
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{TK_CONFIG_COLOR, "-highlightcolor", "highlightColor", "HighlightColor",
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DEF_BUTTON_HIGHLIGHT, Tk_Offset(TkButton, highlightColorPtr),
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ALL_MASK},
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{TK_CONFIG_PIXELS, "-highlightthickness", "highlightThickness",
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"HighlightThickness",
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DEF_LABEL_HIGHLIGHT_WIDTH, Tk_Offset(TkButton, highlightWidth),
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LABEL_MASK},
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{TK_CONFIG_PIXELS, "-highlightthickness", "highlightThickness",
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"HighlightThickness",
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DEF_BUTTON_HIGHLIGHT_WIDTH, Tk_Offset(TkButton, highlightWidth),
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BUTTON_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK},
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#ifdef SCM_CODE
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{TK_CONFIG_IMAGE, "-image", "image", "Image",
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#else
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{TK_CONFIG_STRING, "-image", "image", "Image",
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#endif
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DEF_BUTTON_IMAGE, Tk_Offset(TkButton, imageString),
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ALL_MASK|TK_CONFIG_NULL_OK},
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{TK_CONFIG_BOOLEAN, "-indicatoron", "indicatorOn", "IndicatorOn",
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DEF_BUTTON_INDICATOR, Tk_Offset(TkButton, indicatorOn),
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CHECK_BUTTON_MASK|RADIO_BUTTON_MASK},
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{TK_CONFIG_JUSTIFY, "-justify", "justify", "Justify",
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DEF_BUTTON_JUSTIFY, Tk_Offset(TkButton, justify), ALL_MASK},
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#ifdef SCM_CODE
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{TK_CONFIG_BSTRING, "-offvalue", "offValue", "Value",
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#else
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{TK_CONFIG_STRING, "-offvalue", "offValue", "Value",
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#endif
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DEF_BUTTON_OFF_VALUE, Tk_Offset(TkButton, offValue),
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CHECK_BUTTON_MASK},
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#ifdef SCM_CODE
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{TK_CONFIG_BSTRING, "-onvalue", "onValue", "Value",
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#else
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{TK_CONFIG_STRING, "-onvalue", "onValue", "Value",
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#endif
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DEF_BUTTON_ON_VALUE, Tk_Offset(TkButton, onValue),
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CHECK_BUTTON_MASK},
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{TK_CONFIG_PIXELS, "-padx", "padX", "Pad",
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DEF_BUTTON_PADX, Tk_Offset(TkButton, padX), BUTTON_MASK},
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{TK_CONFIG_PIXELS, "-padx", "padX", "Pad",
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DEF_LABCHKRAD_PADX, Tk_Offset(TkButton, padX),
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LABEL_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK},
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{TK_CONFIG_PIXELS, "-pady", "padY", "Pad",
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DEF_BUTTON_PADY, Tk_Offset(TkButton, padY), BUTTON_MASK},
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{TK_CONFIG_PIXELS, "-pady", "padY", "Pad",
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DEF_LABCHKRAD_PADY, Tk_Offset(TkButton, padY),
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LABEL_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK},
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{TK_CONFIG_RELIEF, "-relief", "relief", "Relief",
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DEF_BUTTON_RELIEF, Tk_Offset(TkButton, relief), BUTTON_MASK},
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{TK_CONFIG_RELIEF, "-relief", "relief", "Relief",
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DEF_LABCHKRAD_RELIEF, Tk_Offset(TkButton, relief),
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LABEL_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK},
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{TK_CONFIG_BORDER, "-selectcolor", "selectColor", "Background",
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DEF_BUTTON_SELECT_COLOR, Tk_Offset(TkButton, selectBorder),
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CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|TK_CONFIG_COLOR_ONLY
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|TK_CONFIG_NULL_OK},
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{TK_CONFIG_BORDER, "-selectcolor", "selectColor", "Background",
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DEF_BUTTON_SELECT_MONO, Tk_Offset(TkButton, selectBorder),
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CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|TK_CONFIG_MONO_ONLY
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|TK_CONFIG_NULL_OK},
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{TK_CONFIG_STRING, "-selectimage", "selectImage", "SelectImage",
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DEF_BUTTON_SELECT_IMAGE, Tk_Offset(TkButton, selectImageString),
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CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|TK_CONFIG_NULL_OK},
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{TK_CONFIG_UID, "-state", "state", "State",
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DEF_BUTTON_STATE, Tk_Offset(TkButton, state),
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BUTTON_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK},
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#ifdef SCM_CODE
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{TK_CONFIG_BOOLEAN, "-stringvalue", "stringvalue", "StringValue",
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"#f", Tk_Offset(TkButton, string),
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BUTTON_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK},
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#endif
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#ifdef SCM_CODE
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{TK_CONFIG_CLOSURE, "-takefocus", "takeFocus", "TakeFocus",
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#else
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{TK_CONFIG_STRING, "-takefocus", "takeFocus", "TakeFocus",
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#endif
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DEF_LABEL_TAKE_FOCUS, Tk_Offset(TkButton, takeFocus),
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LABEL_MASK|TK_CONFIG_NULL_OK},
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#ifdef SCM_CODE
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{TK_CONFIG_CLOSURE, "-takefocus", "takeFocus", "TakeFocus",
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#else
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{TK_CONFIG_STRING, "-takefocus", "takeFocus", "TakeFocus",
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#endif
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DEF_BUTTON_TAKE_FOCUS, Tk_Offset(TkButton, takeFocus),
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BUTTON_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|TK_CONFIG_NULL_OK},
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{TK_CONFIG_STRING, "-text", "text", "Text",
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DEF_BUTTON_TEXT, Tk_Offset(TkButton, text), ALL_MASK},
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{TK_CONFIG_STRING, "-textvariable", "textVariable", "Variable",
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DEF_BUTTON_TEXT_VARIABLE, Tk_Offset(TkButton, textVarName),
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ALL_MASK|TK_CONFIG_NULL_OK},
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{TK_CONFIG_INT, "-underline", "underline", "Underline",
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DEF_BUTTON_UNDERLINE, Tk_Offset(TkButton, underline), ALL_MASK},
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#ifdef SCM_CODE
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{TK_CONFIG_BSTRING, "-value", "value", "Value",
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#else
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{TK_CONFIG_STRING, "-value", "value", "Value",
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#endif
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DEF_BUTTON_VALUE, Tk_Offset(TkButton, onValue),
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RADIO_BUTTON_MASK},
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{TK_CONFIG_STRING, "-variable", "variable", "Variable",
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DEF_RADIOBUTTON_VARIABLE, Tk_Offset(TkButton, selVarName),
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RADIO_BUTTON_MASK},
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{TK_CONFIG_STRING, "-variable", "variable", "Variable",
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DEF_CHECKBUTTON_VARIABLE, Tk_Offset(TkButton, selVarName),
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CHECK_BUTTON_MASK|TK_CONFIG_NULL_OK},
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#ifdef SCM_CODE
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{TK_CONFIG_SINT, "-width", "width", "Width",
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#else
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{TK_CONFIG_STRING, "-width", "width", "Width",
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#endif
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DEF_BUTTON_WIDTH, Tk_Offset(TkButton, widthString), ALL_MASK},
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{TK_CONFIG_PIXELS, "-wraplength", "wrapLength", "WrapLength",
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DEF_BUTTON_WRAP_LENGTH, Tk_Offset(TkButton, wrapLength), ALL_MASK},
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{TK_CONFIG_END, (char *) NULL, (char *) NULL, (char *) NULL,
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(char *) NULL, 0, 0}
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};
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/*
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* String to print out in error messages, identifying options for
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* widget commands for different types of labels or buttons:
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*/
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static char *optionStrings[] = {
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"cget or configure",
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"cget, configure, flash, or invoke",
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"cget, configure, deselect, flash, invoke, select, or toggle",
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"cget, configure, deselect, flash, invoke, or select"
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};
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/*
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* Forward declarations for procedures defined later in this file:
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*/
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static void ButtonCmdDeletedProc _ANSI_ARGS_((
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ClientData clientData));
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static int ButtonCreate _ANSI_ARGS_((ClientData clientData,
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||
Tcl_Interp *interp, int argc, char **argv,
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||
int type));
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static void ButtonEventProc _ANSI_ARGS_((ClientData clientData,
|
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XEvent *eventPtr));
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static void ButtonImageProc _ANSI_ARGS_((ClientData clientData,
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int x, int y, int width, int height,
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int imgWidth, int imgHeight));
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static void ButtonSelectImageProc _ANSI_ARGS_((
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ClientData clientData, int x, int y, int width,
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int height, int imgWidth, int imgHeight));
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static char * ButtonTextVarProc _ANSI_ARGS_((ClientData clientData,
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Tcl_Interp *interp, char *name1, char *name2,
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||
int flags));
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static char * ButtonVarProc _ANSI_ARGS_((ClientData clientData,
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Tcl_Interp *interp, char *name1, char *name2,
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int flags));
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static int ButtonWidgetCmd _ANSI_ARGS_((ClientData clientData,
|
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Tcl_Interp *interp, int argc, char **argv));
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static int ConfigureButton _ANSI_ARGS_((Tcl_Interp *interp,
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TkButton *butPtr, int argc, char **argv,
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int flags));
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static void DestroyButton _ANSI_ARGS_((TkButton *butPtr));
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/*
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*--------------------------------------------------------------
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*
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* Tk_ButtonCmd, Tk_CheckbuttonCmd, Tk_LabelCmd, Tk_RadiobuttonCmd --
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*
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* These procedures are invoked to process the "button", "label",
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* "radiobutton", and "checkbutton" Tcl commands. See the
|
||
* user documentation for details on what they do.
|
||
*
|
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* Results:
|
||
* A standard Tcl result.
|
||
*
|
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* Side effects:
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||
* See the user documentation. These procedures are just wrappers;
|
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* they call ButtonCreate to do all of the real work.
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*
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*--------------------------------------------------------------
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*/
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int
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Tk_ButtonCmd(clientData, interp, argc, argv)
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ClientData clientData; /* Main window associated with
|
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* interpreter. */
|
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Tcl_Interp *interp; /* Current interpreter. */
|
||
int argc; /* Number of arguments. */
|
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char **argv; /* Argument strings. */
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{
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return ButtonCreate(clientData, interp, argc, argv, TYPE_BUTTON);
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}
|
||
|
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int
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Tk_CheckbuttonCmd(clientData, interp, argc, argv)
|
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ClientData clientData; /* Main window associated with
|
||
* interpreter. */
|
||
Tcl_Interp *interp; /* Current interpreter. */
|
||
int argc; /* Number of arguments. */
|
||
char **argv; /* Argument strings. */
|
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{
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return ButtonCreate(clientData, interp, argc, argv, TYPE_CHECK_BUTTON);
|
||
}
|
||
|
||
int
|
||
Tk_LabelCmd(clientData, interp, argc, argv)
|
||
ClientData clientData; /* Main window associated with
|
||
* interpreter. */
|
||
Tcl_Interp *interp; /* Current interpreter. */
|
||
int argc; /* Number of arguments. */
|
||
char **argv; /* Argument strings. */
|
||
{
|
||
return ButtonCreate(clientData, interp, argc, argv, TYPE_LABEL);
|
||
}
|
||
|
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int
|
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Tk_RadiobuttonCmd(clientData, interp, argc, argv)
|
||
ClientData clientData; /* Main window associated with
|
||
* interpreter. */
|
||
Tcl_Interp *interp; /* Current interpreter. */
|
||
int argc; /* Number of arguments. */
|
||
char **argv; /* Argument strings. */
|
||
{
|
||
return ButtonCreate(clientData, interp, argc, argv, TYPE_RADIO_BUTTON);
|
||
}
|
||
|
||
/*
|
||
*--------------------------------------------------------------
|
||
*
|
||
* ButtonCreate --
|
||
*
|
||
* This procedure does all the real work of implementing the
|
||
* "button", "label", "radiobutton", and "checkbutton" Tcl
|
||
* commands. See the user documentation for details on what it does.
|
||
*
|
||
* Results:
|
||
* A standard Tcl result.
|
||
*
|
||
* Side effects:
|
||
* See the user documentation.
|
||
*
|
||
*--------------------------------------------------------------
|
||
*/
|
||
|
||
static int
|
||
ButtonCreate(clientData, interp, argc, argv, type)
|
||
ClientData clientData; /* Main window associated with
|
||
* interpreter. */
|
||
Tcl_Interp *interp; /* Current interpreter. */
|
||
int argc; /* Number of arguments. */
|
||
char **argv; /* Argument strings. */
|
||
int type; /* Type of button to create: TYPE_LABEL,
|
||
* TYPE_BUTTON, TYPE_CHECK_BUTTON, or
|
||
* TYPE_RADIO_BUTTON. */
|
||
{
|
||
register TkButton *butPtr;
|
||
Tk_Window tkwin = (Tk_Window) clientData;
|
||
Tk_Window new;
|
||
|
||
if (argc < 2) {
|
||
Tcl_AppendResult(interp, "wrong # args: should be \"",
|
||
argv[0], " pathName ?options?\"", (char *) NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
/*
|
||
* Create the new window.
|
||
*/
|
||
|
||
new = Tk_CreateWindowFromPath(interp, tkwin, argv[1], (char *) NULL);
|
||
if (new == NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
Tk_SetClass(new, classNames[type]);
|
||
butPtr = TkpCreateButton(new);
|
||
|
||
TkSetClassProcs(new, &tkpButtonProcs, (ClientData) butPtr);
|
||
|
||
/*
|
||
* Initialize the data structure for the button.
|
||
*/
|
||
|
||
butPtr->tkwin = new;
|
||
butPtr->display = Tk_Display(new);
|
||
butPtr->widgetCmd = Tcl_CreateCommand(interp, Tk_PathName(butPtr->tkwin),
|
||
ButtonWidgetCmd, (ClientData) butPtr, ButtonCmdDeletedProc);
|
||
butPtr->interp = interp;
|
||
butPtr->type = type;
|
||
butPtr->text = NULL;
|
||
butPtr->underline = -1;
|
||
butPtr->textVarName = NULL;
|
||
butPtr->bitmap = None;
|
||
butPtr->imageString = NULL;
|
||
butPtr->image = NULL;
|
||
butPtr->selectImageString = NULL;
|
||
butPtr->selectImage = NULL;
|
||
butPtr->state = tkNormalUid;
|
||
butPtr->normalBorder = NULL;
|
||
butPtr->activeBorder = NULL;
|
||
butPtr->borderWidth = 0;
|
||
butPtr->relief = TK_RELIEF_FLAT;
|
||
butPtr->highlightWidth = 0;
|
||
butPtr->highlightBorder = NULL;
|
||
butPtr->highlightColorPtr = NULL;
|
||
butPtr->inset = 0;
|
||
butPtr->tkfont = NULL;
|
||
butPtr->normalFg = NULL;
|
||
butPtr->activeFg = NULL;
|
||
butPtr->disabledFg = NULL;
|
||
butPtr->normalTextGC = None;
|
||
butPtr->activeTextGC = None;
|
||
butPtr->gray = None;
|
||
butPtr->disabledGC = None;
|
||
butPtr->copyGC = None;
|
||
butPtr->widthString = NULL;
|
||
butPtr->heightString = NULL;
|
||
butPtr->width = 0;
|
||
butPtr->height = 0;
|
||
butPtr->wrapLength = 0;
|
||
butPtr->padX = 0;
|
||
butPtr->padY = 0;
|
||
butPtr->anchor = TK_ANCHOR_CENTER;
|
||
butPtr->justify = TK_JUSTIFY_CENTER;
|
||
butPtr->textLayout = NULL;
|
||
butPtr->indicatorOn = 0;
|
||
butPtr->selectBorder = NULL;
|
||
butPtr->indicatorSpace = 0;
|
||
butPtr->indicatorDiameter = 0;
|
||
butPtr->defaultState = tkDisabledUid;
|
||
butPtr->selVarName = NULL;
|
||
butPtr->onValue = NULL;
|
||
butPtr->offValue = NULL;
|
||
butPtr->cursor = None;
|
||
butPtr->command = NULL;
|
||
butPtr->takeFocus = NULL;
|
||
butPtr->flags = 0;
|
||
#ifdef SCM_CODE
|
||
butPtr->env = NULL;
|
||
butPtr->string = 0;
|
||
#endif
|
||
|
||
Tk_CreateEventHandler(butPtr->tkwin,
|
||
ExposureMask|StructureNotifyMask|FocusChangeMask,
|
||
ButtonEventProc, (ClientData) butPtr);
|
||
|
||
if (ConfigureButton(interp, butPtr, argc - 2, argv + 2,
|
||
configFlags[type]) != TCL_OK) {
|
||
Tk_DestroyWindow(butPtr->tkwin);
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
#ifdef STk_CODE
|
||
STk_sharp_dot_result(interp, Tk_PathName(butPtr->tkwin));
|
||
#else
|
||
interp->result = Tk_PathName(butPtr->tkwin);
|
||
#endif
|
||
return TCL_OK;
|
||
}
|
||
|
||
/*
|
||
*--------------------------------------------------------------
|
||
*
|
||
* ButtonWidgetCmd --
|
||
*
|
||
* This procedure is invoked to process the Tcl command
|
||
* that corresponds to a widget managed by this module.
|
||
* See the user documentation for details on what it does.
|
||
*
|
||
* Results:
|
||
* A standard Tcl result.
|
||
*
|
||
* Side effects:
|
||
* See the user documentation.
|
||
*
|
||
*--------------------------------------------------------------
|
||
*/
|
||
|
||
static int
|
||
ButtonWidgetCmd(clientData, interp, argc, argv)
|
||
ClientData clientData; /* Information about button widget. */
|
||
Tcl_Interp *interp; /* Current interpreter. */
|
||
int argc; /* Number of arguments. */
|
||
char **argv; /* Argument strings. */
|
||
{
|
||
register TkButton *butPtr = (TkButton *) clientData;
|
||
int result = TCL_OK;
|
||
size_t length;
|
||
int c;
|
||
#ifdef SCM_CODE
|
||
int flag;
|
||
#endif
|
||
|
||
if (argc < 2) {
|
||
sprintf(interp->result,
|
||
"wrong # args: should be \"%.50s option ?arg arg ...?\"",
|
||
argv[0]);
|
||
return TCL_ERROR;
|
||
}
|
||
Tcl_Preserve((ClientData) butPtr);
|
||
c = argv[1][0];
|
||
length = strlen(argv[1]);
|
||
|
||
if ((c == 'c') && (strncmp(argv[1], "cget", length) == 0)
|
||
&& (length >= 2)) {
|
||
if (argc != 3) {
|
||
Tcl_AppendResult(interp, "wrong # args: should be \"",
|
||
argv[0], " cget option\"",
|
||
(char *) NULL);
|
||
goto error;
|
||
}
|
||
result = Tk_ConfigureValue(interp, butPtr->tkwin, tkpButtonConfigSpecs,
|
||
(char *) butPtr, argv[2], configFlags[butPtr->type]);
|
||
} else if ((c == 'c') && (strncmp(argv[1], "configure", length) == 0)
|
||
&& (length >= 2)) {
|
||
if (argc == 2) {
|
||
result = Tk_ConfigureInfo(interp, butPtr->tkwin,
|
||
tkpButtonConfigSpecs, (char *) butPtr, (char *) NULL,
|
||
configFlags[butPtr->type]);
|
||
} else if (argc == 3) {
|
||
result = Tk_ConfigureInfo(interp, butPtr->tkwin,
|
||
tkpButtonConfigSpecs, (char *) butPtr, argv[2],
|
||
configFlags[butPtr->type]);
|
||
} else {
|
||
result = ConfigureButton(interp, butPtr, argc-2, argv+2,
|
||
configFlags[butPtr->type] | TK_CONFIG_ARGV_ONLY);
|
||
}
|
||
} else if ((c == 'd') && (strncmp(argv[1], "deselect", length) == 0)
|
||
&& (butPtr->type >= TYPE_CHECK_BUTTON)) {
|
||
if (argc > 2) {
|
||
sprintf(interp->result,
|
||
"wrong # args: should be \"%.50s deselect\"",
|
||
argv[0]);
|
||
goto error;
|
||
}
|
||
#ifdef SCM_CODE
|
||
flag = (butPtr->string)? STk_STRINGIFY : 0;
|
||
#endif
|
||
if (butPtr->type == TYPE_CHECK_BUTTON) {
|
||
#ifdef SCM_CODE
|
||
if (STk_tcl_setvar(butPtr->selVarName, butPtr->offValue,
|
||
flag, butPtr->env) == NULL) {
|
||
#else
|
||
if (Tcl_SetVar(interp, butPtr->selVarName, butPtr->offValue,
|
||
TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
|
||
#endif
|
||
result = TCL_ERROR;
|
||
}
|
||
} else if (butPtr->flags & SELECTED) {
|
||
#ifdef SCM_CODE
|
||
if (STk_tcl_setvar(butPtr->selVarName, "#t",
|
||
flag, butPtr->env) == NULL) {
|
||
#else
|
||
if (Tcl_SetVar(interp, butPtr->selVarName, "",
|
||
TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
|
||
#endif
|
||
result = TCL_ERROR;
|
||
};
|
||
}
|
||
} else if ((c == 'f') && (strncmp(argv[1], "flash", length) == 0)
|
||
&& (butPtr->type != TYPE_LABEL)) {
|
||
int i;
|
||
|
||
if (argc > 2) {
|
||
sprintf(interp->result,
|
||
"wrong # args: should be \"%.50s flash\"",
|
||
argv[0]);
|
||
goto error;
|
||
}
|
||
if (butPtr->state != tkDisabledUid) {
|
||
for (i = 0; i < 4; i++) {
|
||
butPtr->state = (butPtr->state == tkNormalUid)
|
||
? tkActiveUid : tkNormalUid;
|
||
Tk_SetBackgroundFromBorder(butPtr->tkwin,
|
||
(butPtr->state == tkActiveUid) ? butPtr->activeBorder
|
||
: butPtr->normalBorder);
|
||
TkpDisplayButton((ClientData) butPtr);
|
||
|
||
/*
|
||
* Special note: must cancel any existing idle handler
|
||
* for TkpDisplayButton; it's no longer needed, and TkpDisplayButton
|
||
* cleared the REDRAW_PENDING flag.
|
||
*/
|
||
|
||
Tcl_CancelIdleCall(TkpDisplayButton, (ClientData) butPtr);
|
||
XFlush(butPtr->display);
|
||
Tcl_Sleep(50);
|
||
}
|
||
}
|
||
} else if ((c == 'i') && (strncmp(argv[1], "invoke", length) == 0)
|
||
&& (butPtr->type > TYPE_LABEL)) {
|
||
if (argc > 2) {
|
||
sprintf(interp->result,
|
||
"wrong # args: should be \"%.50s invoke\"",
|
||
argv[0]);
|
||
goto error;
|
||
}
|
||
if (butPtr->state != tkDisabledUid) {
|
||
result = TkInvokeButton(butPtr);
|
||
}
|
||
} else if ((c == 's') && (strncmp(argv[1], "select", length) == 0)
|
||
&& (butPtr->type >= TYPE_CHECK_BUTTON)) {
|
||
if (argc > 2) {
|
||
sprintf(interp->result,
|
||
"wrong # args: should be \"%.50s select\"",
|
||
argv[0]);
|
||
goto error;
|
||
}
|
||
#ifdef SCM_CODE
|
||
if (STk_tcl_setvar(butPtr->selVarName, butPtr->onValue,
|
||
((butPtr->string)? STk_STRINGIFY:0),
|
||
butPtr->env) == NULL) {
|
||
#else
|
||
if (Tcl_SetVar(interp, butPtr->selVarName, butPtr->onValue,
|
||
TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
|
||
#endif
|
||
|
||
result = TCL_ERROR;
|
||
}
|
||
} else if ((c == 't') && (strncmp(argv[1], "toggle", length) == 0)
|
||
&& (length >= 2) && (butPtr->type == TYPE_CHECK_BUTTON)) {
|
||
if (argc > 2) {
|
||
sprintf(interp->result,
|
||
"wrong # args: should be \"%.50s toggle\"",
|
||
argv[0]);
|
||
goto error;
|
||
}
|
||
if (butPtr->flags & SELECTED) {
|
||
#ifdef SCM_CODE
|
||
if (STk_tcl_setvar(butPtr->selVarName, butPtr->offValue,
|
||
((butPtr->string)? STk_STRINGIFY:0),
|
||
butPtr->env) == NULL) {
|
||
#else
|
||
if (Tcl_SetVar(interp, butPtr->selVarName, butPtr->offValue,
|
||
TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
|
||
#endif
|
||
result = TCL_ERROR;
|
||
}
|
||
} else {
|
||
#ifdef SCM_CODE
|
||
if (STk_tcl_setvar(butPtr->selVarName, butPtr->onValue,
|
||
((butPtr->string)? STk_STRINGIFY:0),
|
||
butPtr->env) == NULL) {
|
||
#else
|
||
if (Tcl_SetVar(interp, butPtr->selVarName, butPtr->onValue,
|
||
TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
|
||
#endif
|
||
result = TCL_ERROR;
|
||
}
|
||
}
|
||
} else {
|
||
sprintf(interp->result,
|
||
"bad option \"%.50s\": must be %s", argv[1],
|
||
optionStrings[butPtr->type]);
|
||
goto error;
|
||
}
|
||
Tcl_Release((ClientData) butPtr);
|
||
return result;
|
||
|
||
error:
|
||
Tcl_Release((ClientData) butPtr);
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* DestroyButton --
|
||
*
|
||
* This procedure is invoked by Tcl_EventuallyFree or Tcl_Release
|
||
* to clean up the internal structure of a button at a safe time
|
||
* (when no-one is using it anymore).
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* Everything associated with the widget is freed up.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static void
|
||
DestroyButton(butPtr)
|
||
TkButton *butPtr; /* Info about button widget. */
|
||
{
|
||
/*
|
||
* Free up all the stuff that requires special handling, then
|
||
* let Tk_FreeOptions handle all the standard option-related
|
||
* stuff.
|
||
*/
|
||
|
||
if (butPtr->textVarName != NULL) {
|
||
Tcl_UntraceVar(butPtr->interp, butPtr->textVarName,
|
||
TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
|
||
ButtonTextVarProc, (ClientData) butPtr);
|
||
}
|
||
if (butPtr->image != NULL) {
|
||
Tk_FreeImage(butPtr->image);
|
||
}
|
||
if (butPtr->selectImage != NULL) {
|
||
Tk_FreeImage(butPtr->selectImage);
|
||
}
|
||
if (butPtr->normalTextGC != None) {
|
||
Tk_FreeGC(butPtr->display, butPtr->normalTextGC);
|
||
}
|
||
if (butPtr->activeTextGC != None) {
|
||
Tk_FreeGC(butPtr->display, butPtr->activeTextGC);
|
||
}
|
||
if (butPtr->gray != None) {
|
||
Tk_FreeBitmap(butPtr->display, butPtr->gray);
|
||
}
|
||
if (butPtr->disabledGC != None) {
|
||
Tk_FreeGC(butPtr->display, butPtr->disabledGC);
|
||
}
|
||
if (butPtr->copyGC != None) {
|
||
Tk_FreeGC(butPtr->display, butPtr->copyGC);
|
||
}
|
||
if (butPtr->selVarName != NULL) {
|
||
Tcl_UntraceVar(butPtr->interp, butPtr->selVarName,
|
||
TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
|
||
ButtonVarProc, (ClientData) butPtr);
|
||
}
|
||
Tk_FreeTextLayout(butPtr->textLayout);
|
||
Tk_FreeOptions(tkpButtonConfigSpecs, (char *) butPtr, butPtr->display,
|
||
configFlags[butPtr->type]);
|
||
Tcl_EventuallyFree((ClientData)butPtr, TCL_DYNAMIC);
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* ConfigureButton --
|
||
*
|
||
* This procedure is called to process an argv/argc list, plus
|
||
* the Tk option database, in order to configure (or
|
||
* reconfigure) a button widget.
|
||
*
|
||
* Results:
|
||
* The return value is a standard Tcl result. If TCL_ERROR is
|
||
* returned, then interp->result contains an error message.
|
||
*
|
||
* Side effects:
|
||
* Configuration information, such as text string, colors, font,
|
||
* etc. get set for butPtr; old resources get freed, if there
|
||
* were any. The button is redisplayed.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static int
|
||
ConfigureButton(interp, butPtr, argc, argv, flags)
|
||
Tcl_Interp *interp; /* Used for error reporting. */
|
||
register TkButton *butPtr; /* Information about widget; may or may
|
||
* not already have values for some fields. */
|
||
int argc; /* Number of valid entries in argv. */
|
||
char **argv; /* Arguments. */
|
||
int flags; /* Flags to pass to Tk_ConfigureWidget. */
|
||
{
|
||
Tk_Image image;
|
||
|
||
|
||
/*
|
||
* Eliminate any existing trace on variables monitored by the button.
|
||
*/
|
||
|
||
if (butPtr->textVarName != NULL) {
|
||
Tcl_UntraceVar(interp, butPtr->textVarName,
|
||
TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
|
||
ButtonTextVarProc, (ClientData) butPtr);
|
||
}
|
||
if (butPtr->selVarName != NULL) {
|
||
Tcl_UntraceVar(interp, butPtr->selVarName,
|
||
TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
|
||
ButtonVarProc, (ClientData) butPtr);
|
||
}
|
||
|
||
|
||
|
||
if (Tk_ConfigureWidget(interp, butPtr->tkwin, tkpButtonConfigSpecs,
|
||
argc, argv, (char *) butPtr, flags) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
/*
|
||
* A few options need special processing, such as setting the
|
||
* background from a 3-D border, or filling in complicated
|
||
* defaults that couldn't be specified to Tk_ConfigureWidget.
|
||
*/
|
||
|
||
if ((butPtr->state == tkActiveUid) && !Tk_StrictMotif(butPtr->tkwin)) {
|
||
Tk_SetBackgroundFromBorder(butPtr->tkwin, butPtr->activeBorder);
|
||
} else {
|
||
Tk_SetBackgroundFromBorder(butPtr->tkwin, butPtr->normalBorder);
|
||
if ((butPtr->state != tkNormalUid) && (butPtr->state != tkActiveUid)
|
||
&& (butPtr->state != tkDisabledUid)) {
|
||
Tcl_AppendResult(interp, "bad state value \"", butPtr->state,
|
||
"\": must be normal, active, or disabled", (char *) NULL);
|
||
butPtr->state = tkNormalUid;
|
||
return TCL_ERROR;
|
||
}
|
||
}
|
||
|
||
if ((butPtr->defaultState != tkActiveUid)
|
||
&& (butPtr->defaultState != tkDisabledUid)
|
||
&& (butPtr->defaultState != tkNormalUid)) {
|
||
Tcl_AppendResult(interp, "bad -default value \"", butPtr->defaultState,
|
||
"\": must be normal, active, or disabled", (char *) NULL);
|
||
butPtr->defaultState = tkDisabledUid;
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
if (butPtr->highlightWidth < 0) {
|
||
butPtr->highlightWidth = 0;
|
||
}
|
||
|
||
if (butPtr->padX < 0) {
|
||
butPtr->padX = 0;
|
||
}
|
||
if (butPtr->padY < 0) {
|
||
butPtr->padY = 0;
|
||
}
|
||
|
||
if (butPtr->type >= TYPE_CHECK_BUTTON) {
|
||
char *value;
|
||
|
||
if (butPtr->selVarName == NULL) {
|
||
#ifdef BGLK_CODE
|
||
butPtr->selVarName = (char *) ckalloc_atomic((unsigned)
|
||
#else
|
||
butPtr->selVarName = (char *) ckalloc((unsigned)
|
||
(strlen(Tk_Name(butPtr->tkwin)) + 1));
|
||
#endif
|
||
strcpy(butPtr->selVarName, Tk_Name(butPtr->tkwin));
|
||
}
|
||
|
||
/*
|
||
* Select the button if the associated variable has the
|
||
* appropriate value, initialize the variable if it doesn't
|
||
* exist, then set a trace on the variable to monitor future
|
||
* changes to its value.
|
||
*/
|
||
|
||
#ifdef SCM_CODE
|
||
value = STk_tcl_getvar(butPtr->selVarName, butPtr->env);
|
||
#else
|
||
value = Tcl_GetVar(interp, butPtr->selVarName, TCL_GLOBAL_ONLY);
|
||
#endif
|
||
butPtr->flags &= ~SELECTED;
|
||
if (value != NULL) {
|
||
if (strcmp(value, butPtr->onValue) == 0) {
|
||
butPtr->flags |= SELECTED;
|
||
}
|
||
} else {
|
||
#ifdef SCM_CODE
|
||
if (STk_tcl_setvar(butPtr->selVarName,
|
||
(butPtr->type == TYPE_CHECK_BUTTON) ? butPtr->offValue : "#f",
|
||
((butPtr->string)? STk_STRINGIFY:0), butPtr->env) == NULL) {
|
||
#else
|
||
if (Tcl_SetVar(interp, butPtr->selVarName,
|
||
(butPtr->type == TYPE_CHECK_BUTTON) ? butPtr->offValue : "",
|
||
TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
|
||
#endif
|
||
return TCL_ERROR;
|
||
}
|
||
}
|
||
Tcl_TraceVar(interp, butPtr->selVarName,
|
||
TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
|
||
ButtonVarProc, (ClientData) butPtr);
|
||
}
|
||
|
||
/*
|
||
* Get the images for the widget, if there are any. Allocate the
|
||
* new images before freeing the old ones, so that the reference
|
||
* counts don't go to zero and cause image data to be discarded.
|
||
*/
|
||
|
||
if (butPtr->imageString != NULL) {
|
||
image = Tk_GetImage(butPtr->interp, butPtr->tkwin,
|
||
butPtr->imageString, ButtonImageProc, (ClientData) butPtr);
|
||
if (image == NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
} else {
|
||
image = NULL;
|
||
}
|
||
if (butPtr->image != NULL) {
|
||
Tk_FreeImage(butPtr->image);
|
||
}
|
||
butPtr->image = image;
|
||
if (butPtr->selectImageString != NULL) {
|
||
image = Tk_GetImage(butPtr->interp, butPtr->tkwin,
|
||
butPtr->selectImageString, ButtonSelectImageProc,
|
||
(ClientData) butPtr);
|
||
if (image == NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
} else {
|
||
image = NULL;
|
||
}
|
||
if (butPtr->selectImage != NULL) {
|
||
Tk_FreeImage(butPtr->selectImage);
|
||
}
|
||
butPtr->selectImage = image;
|
||
|
||
if ((butPtr->image == NULL) && (butPtr->bitmap == None)
|
||
&& (butPtr->textVarName != NULL)) {
|
||
/*
|
||
* The button must display the value of a variable: set up a trace
|
||
* on the variable's value, create the variable if it doesn't
|
||
* exist, and fetch its current value.
|
||
*/
|
||
|
||
char *value;
|
||
|
||
#ifdef SCM_CODE
|
||
value = STk_tcl_getvar(butPtr->textVarName, butPtr->env);
|
||
#else
|
||
value = Tcl_GetVar(interp, butPtr->textVarName, TCL_GLOBAL_ONLY);
|
||
#endif
|
||
if (value == NULL) {
|
||
#ifdef SCM_CODE
|
||
if (STk_tcl_setvar(butPtr->textVarName, butPtr->text,
|
||
((butPtr->string)? STk_STRINGIFY:0),
|
||
butPtr->env) == NULL) {
|
||
#else
|
||
if (Tcl_SetVar(interp, butPtr->textVarName, butPtr->text,
|
||
TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
|
||
#endif
|
||
return TCL_ERROR;
|
||
}
|
||
} else {
|
||
if (butPtr->text != NULL) {
|
||
ckfree(butPtr->text);
|
||
}
|
||
#ifdef BGLK_CODE
|
||
butPtr->text = (char *) ckalloc_atomic((unsigned) (strlen(value) + 1));
|
||
#else
|
||
butPtr->text = (char *) ckalloc((unsigned) (strlen(value) + 1));
|
||
#endif
|
||
strcpy(butPtr->text, value);
|
||
}
|
||
Tcl_TraceVar(interp, butPtr->textVarName,
|
||
TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
|
||
ButtonTextVarProc, (ClientData) butPtr);
|
||
}
|
||
|
||
if ((butPtr->bitmap != None) || (butPtr->image != NULL)) {
|
||
if (Tk_GetPixels(interp, butPtr->tkwin, butPtr->widthString,
|
||
&butPtr->width) != TCL_OK) {
|
||
widthError:
|
||
Tcl_AddErrorInfo(interp, "\n (processing -width option)");
|
||
return TCL_ERROR;
|
||
}
|
||
if (Tk_GetPixels(interp, butPtr->tkwin, butPtr->heightString,
|
||
&butPtr->height) != TCL_OK) {
|
||
heightError:
|
||
Tcl_AddErrorInfo(interp, "\n (processing -height option)");
|
||
return TCL_ERROR;
|
||
}
|
||
} else {
|
||
if (Tcl_GetInt(interp, butPtr->widthString, &butPtr->width)
|
||
!= TCL_OK) {
|
||
goto widthError;
|
||
}
|
||
if (Tcl_GetInt(interp, butPtr->heightString, &butPtr->height)
|
||
!= TCL_OK) {
|
||
goto heightError;
|
||
}
|
||
}
|
||
|
||
TkButtonWorldChanged((ClientData) butPtr);
|
||
return TCL_OK;
|
||
}
|
||
|
||
/*
|
||
*---------------------------------------------------------------------------
|
||
*
|
||
* TkButtonWorldChanged --
|
||
*
|
||
* This procedure is called when the world has changed in some
|
||
* way and the widget needs to recompute all its graphics contexts
|
||
* and determine its new geometry.
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* Button will be relayed out and redisplayed.
|
||
*
|
||
*---------------------------------------------------------------------------
|
||
*/
|
||
|
||
void
|
||
TkButtonWorldChanged(instanceData)
|
||
ClientData instanceData; /* Information about widget. */
|
||
{
|
||
XGCValues gcValues;
|
||
GC newGC;
|
||
unsigned long mask;
|
||
TkButton *butPtr;
|
||
|
||
butPtr = (TkButton *) instanceData;
|
||
|
||
/*
|
||
* Recompute GCs.
|
||
*/
|
||
|
||
gcValues.font = Tk_FontId(butPtr->tkfont);
|
||
gcValues.foreground = butPtr->normalFg->pixel;
|
||
gcValues.background = Tk_3DBorderColor(butPtr->normalBorder)->pixel;
|
||
|
||
/*
|
||
* Note: GraphicsExpose events are disabled in normalTextGC because it's
|
||
* used to copy stuff from an off-screen pixmap onto the screen (we know
|
||
* that there's no problem with obscured areas).
|
||
*/
|
||
|
||
gcValues.graphics_exposures = False;
|
||
mask = GCForeground | GCBackground | GCFont | GCGraphicsExposures;
|
||
newGC = Tk_GetGC(butPtr->tkwin, mask, &gcValues);
|
||
if (butPtr->normalTextGC != None) {
|
||
Tk_FreeGC(butPtr->display, butPtr->normalTextGC);
|
||
}
|
||
butPtr->normalTextGC = newGC;
|
||
|
||
if (butPtr->activeFg != NULL) {
|
||
gcValues.font = Tk_FontId(butPtr->tkfont);
|
||
gcValues.foreground = butPtr->activeFg->pixel;
|
||
gcValues.background = Tk_3DBorderColor(butPtr->activeBorder)->pixel;
|
||
mask = GCForeground | GCBackground | GCFont;
|
||
newGC = Tk_GetGC(butPtr->tkwin, mask, &gcValues);
|
||
if (butPtr->activeTextGC != None) {
|
||
Tk_FreeGC(butPtr->display, butPtr->activeTextGC);
|
||
}
|
||
butPtr->activeTextGC = newGC;
|
||
}
|
||
|
||
if (butPtr->type != TYPE_LABEL) {
|
||
gcValues.font = Tk_FontId(butPtr->tkfont);
|
||
gcValues.background = Tk_3DBorderColor(butPtr->normalBorder)->pixel;
|
||
if ((butPtr->disabledFg != NULL) && (butPtr->imageString == NULL)) {
|
||
gcValues.foreground = butPtr->disabledFg->pixel;
|
||
mask = GCForeground | GCBackground | GCFont;
|
||
} else {
|
||
gcValues.foreground = gcValues.background;
|
||
mask = GCForeground;
|
||
if (butPtr->gray == None) {
|
||
butPtr->gray = Tk_GetBitmap(NULL, butPtr->tkwin,
|
||
Tk_GetUid("gray50"));
|
||
}
|
||
if (butPtr->gray != None) {
|
||
gcValues.fill_style = FillStippled;
|
||
gcValues.stipple = butPtr->gray;
|
||
mask |= GCFillStyle | GCStipple;
|
||
}
|
||
}
|
||
newGC = Tk_GetGC(butPtr->tkwin, mask, &gcValues);
|
||
if (butPtr->disabledGC != None) {
|
||
Tk_FreeGC(butPtr->display, butPtr->disabledGC);
|
||
}
|
||
butPtr->disabledGC = newGC;
|
||
}
|
||
|
||
if (butPtr->copyGC == None) {
|
||
butPtr->copyGC = Tk_GetGC(butPtr->tkwin, 0, &gcValues);
|
||
}
|
||
|
||
TkpComputeButtonGeometry(butPtr);
|
||
|
||
/*
|
||
* Lastly, arrange for the button to be redisplayed.
|
||
*/
|
||
|
||
if (Tk_IsMapped(butPtr->tkwin) && !(butPtr->flags & REDRAW_PENDING)) {
|
||
Tcl_DoWhenIdle(TkpDisplayButton, (ClientData) butPtr);
|
||
butPtr->flags |= REDRAW_PENDING;
|
||
}
|
||
}
|
||
|
||
/*
|
||
*--------------------------------------------------------------
|
||
*
|
||
* ButtonEventProc --
|
||
*
|
||
* This procedure is invoked by the Tk dispatcher for various
|
||
* events on buttons.
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* When the window gets deleted, internal structures get
|
||
* cleaned up. When it gets exposed, it is redisplayed.
|
||
*
|
||
*--------------------------------------------------------------
|
||
*/
|
||
|
||
static void
|
||
ButtonEventProc(clientData, eventPtr)
|
||
ClientData clientData; /* Information about window. */
|
||
XEvent *eventPtr; /* Information about event. */
|
||
{
|
||
TkButton *butPtr = (TkButton *) clientData;
|
||
if ((eventPtr->type == Expose) && (eventPtr->xexpose.count == 0)) {
|
||
goto redraw;
|
||
} else if (eventPtr->type == ConfigureNotify) {
|
||
/*
|
||
* Must redraw after size changes, since layout could have changed
|
||
* and borders will need to be redrawn.
|
||
*/
|
||
|
||
goto redraw;
|
||
} else if (eventPtr->type == DestroyNotify) {
|
||
TkpDestroyButton(butPtr);
|
||
if (butPtr->tkwin != NULL) {
|
||
butPtr->tkwin = NULL;
|
||
Tcl_DeleteCommandFromToken(butPtr->interp, butPtr->widgetCmd);
|
||
}
|
||
if (butPtr->flags & REDRAW_PENDING) {
|
||
Tcl_CancelIdleCall(TkpDisplayButton, (ClientData) butPtr);
|
||
}
|
||
DestroyButton(butPtr);
|
||
} else if (eventPtr->type == FocusIn) {
|
||
if (eventPtr->xfocus.detail != NotifyInferior) {
|
||
butPtr->flags |= GOT_FOCUS;
|
||
if (butPtr->highlightWidth > 0) {
|
||
goto redraw;
|
||
}
|
||
}
|
||
} else if (eventPtr->type == FocusOut) {
|
||
if (eventPtr->xfocus.detail != NotifyInferior) {
|
||
butPtr->flags &= ~GOT_FOCUS;
|
||
if (butPtr->highlightWidth > 0) {
|
||
goto redraw;
|
||
}
|
||
}
|
||
}
|
||
return;
|
||
|
||
redraw:
|
||
if ((butPtr->tkwin != NULL) && !(butPtr->flags & REDRAW_PENDING)) {
|
||
Tcl_DoWhenIdle(TkpDisplayButton, (ClientData) butPtr);
|
||
butPtr->flags |= REDRAW_PENDING;
|
||
}
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* ButtonCmdDeletedProc --
|
||
*
|
||
* This procedure is invoked when a widget command is deleted. If
|
||
* the widget isn't already in the process of being destroyed,
|
||
* this command destroys it.
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* The widget is destroyed.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static void
|
||
ButtonCmdDeletedProc(clientData)
|
||
ClientData clientData; /* Pointer to widget record for widget. */
|
||
{
|
||
TkButton *butPtr = (TkButton *) clientData;
|
||
Tk_Window tkwin = butPtr->tkwin;
|
||
|
||
/*
|
||
* This procedure could be invoked either because the window was
|
||
* destroyed and the command was then deleted (in which case tkwin
|
||
* is NULL) or because the command was deleted, and then this procedure
|
||
* destroys the widget.
|
||
*/
|
||
|
||
if (tkwin != NULL) {
|
||
butPtr->tkwin = NULL;
|
||
Tk_DestroyWindow(tkwin);
|
||
}
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* TkInvokeButton --
|
||
*
|
||
* This procedure is called to carry out the actions associated
|
||
* with a button, such as invoking a Tcl command or setting a
|
||
* variable. This procedure is invoked, for example, when the
|
||
* button is invoked via the mouse.
|
||
*
|
||
* Results:
|
||
* A standard Tcl return value. Information is also left in
|
||
* interp->result.
|
||
*
|
||
* Side effects:
|
||
* Depends on the button and its associated command.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
int
|
||
TkInvokeButton(butPtr)
|
||
register TkButton *butPtr; /* Information about button. */
|
||
{
|
||
#ifdef SCM_CODE
|
||
int flag = (butPtr->string? STk_STRINGIFY : 0)|TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG;
|
||
#endif
|
||
|
||
if (butPtr->type == TYPE_CHECK_BUTTON) {
|
||
if (butPtr->flags & SELECTED) {
|
||
#ifdef SCM_CODE
|
||
if (STk_tcl_setvar(butPtr->selVarName, butPtr->offValue,
|
||
flag, butPtr->env) == NULL) {
|
||
#else
|
||
if (Tcl_SetVar(butPtr->interp, butPtr->selVarName, butPtr->offValue,
|
||
TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
|
||
#endif
|
||
return TCL_ERROR;
|
||
}
|
||
} else {
|
||
#ifdef SCM_CODE
|
||
if (STk_tcl_setvar(butPtr->selVarName, butPtr->onValue,
|
||
flag, butPtr->env) == NULL) {
|
||
#else
|
||
if (Tcl_SetVar(butPtr->interp, butPtr->selVarName, butPtr->onValue,
|
||
TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
|
||
#endif
|
||
return TCL_ERROR;
|
||
}
|
||
}
|
||
} else if (butPtr->type == TYPE_RADIO_BUTTON) {
|
||
#ifdef SCM_CODE
|
||
if (STk_tcl_setvar(butPtr->selVarName, butPtr->onValue,
|
||
flag, butPtr->env) == NULL) {
|
||
#else
|
||
if (Tcl_SetVar(butPtr->interp, butPtr->selVarName, butPtr->onValue,
|
||
TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
|
||
#endif
|
||
return TCL_ERROR;
|
||
}
|
||
}
|
||
if ((butPtr->type != TYPE_LABEL) && (butPtr->command != NULL)) {
|
||
return TkCopyAndGlobalEval(butPtr->interp, butPtr->command);
|
||
}
|
||
return TCL_OK;
|
||
}
|
||
|
||
/*
|
||
*--------------------------------------------------------------
|
||
*
|
||
* ButtonVarProc --
|
||
*
|
||
* This procedure is invoked when someone changes the
|
||
* state variable associated with a radio button. Depending
|
||
* on the new value of the button's variable, the button
|
||
* may be selected or deselected.
|
||
*
|
||
* Results:
|
||
* NULL is always returned.
|
||
*
|
||
* Side effects:
|
||
* The button may become selected or deselected.
|
||
*
|
||
*--------------------------------------------------------------
|
||
*/
|
||
|
||
/* ARGSUSED */
|
||
static char *
|
||
ButtonVarProc(clientData, interp, name1, name2, flags)
|
||
ClientData clientData; /* Information about button. */
|
||
Tcl_Interp *interp; /* Interpreter containing variable. */
|
||
char *name1; /* Name of variable. */
|
||
char *name2; /* Second part of variable name. */
|
||
int flags; /* Information about what happened. */
|
||
{
|
||
register TkButton *butPtr = (TkButton *) clientData;
|
||
char *value;
|
||
|
||
/*
|
||
* If the variable is being unset, then just re-establish the
|
||
* trace unless the whole interpreter is going away.
|
||
*/
|
||
|
||
if (flags & TCL_TRACE_UNSETS) {
|
||
butPtr->flags &= ~SELECTED;
|
||
if ((flags & TCL_TRACE_DESTROYED) && !(flags & TCL_INTERP_DESTROYED)) {
|
||
Tcl_TraceVar(interp, butPtr->selVarName,
|
||
TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
|
||
ButtonVarProc, clientData);
|
||
}
|
||
goto redisplay;
|
||
}
|
||
|
||
/*
|
||
* Use the value of the variable to update the selected status of
|
||
* the button.
|
||
*/
|
||
|
||
#ifdef SCM_CODE
|
||
value = STk_tcl_getvar(butPtr->selVarName, butPtr->env);
|
||
#else
|
||
value = Tcl_GetVar(interp, butPtr->selVarName, TCL_GLOBAL_ONLY);
|
||
#endif
|
||
if (value == NULL) {
|
||
value = "";
|
||
}
|
||
if (strcmp(value, butPtr->onValue) == 0) {
|
||
if (butPtr->flags & SELECTED) {
|
||
return (char *) NULL;
|
||
}
|
||
butPtr->flags |= SELECTED;
|
||
} else if (butPtr->flags & SELECTED) {
|
||
butPtr->flags &= ~SELECTED;
|
||
} else {
|
||
return (char *) NULL;
|
||
}
|
||
|
||
redisplay:
|
||
if ((butPtr->tkwin != NULL) && Tk_IsMapped(butPtr->tkwin)
|
||
&& !(butPtr->flags & REDRAW_PENDING)) {
|
||
Tcl_DoWhenIdle(TkpDisplayButton, (ClientData) butPtr);
|
||
butPtr->flags |= REDRAW_PENDING;
|
||
}
|
||
return (char *) NULL;
|
||
}
|
||
|
||
/*
|
||
*--------------------------------------------------------------
|
||
*
|
||
* ButtonTextVarProc --
|
||
*
|
||
* This procedure is invoked when someone changes the variable
|
||
* whose contents are to be displayed in a button.
|
||
*
|
||
* Results:
|
||
* NULL is always returned.
|
||
*
|
||
* Side effects:
|
||
* The text displayed in the button will change to match the
|
||
* variable.
|
||
*
|
||
*--------------------------------------------------------------
|
||
*/
|
||
|
||
/* ARGSUSED */
|
||
static char *
|
||
ButtonTextVarProc(clientData, interp, name1, name2, flags)
|
||
ClientData clientData; /* Information about button. */
|
||
Tcl_Interp *interp; /* Interpreter containing variable. */
|
||
char *name1; /* Not used. */
|
||
char *name2; /* Not used. */
|
||
int flags; /* Information about what happened. */
|
||
{
|
||
register TkButton *butPtr = (TkButton *) clientData;
|
||
char *value;
|
||
|
||
/*
|
||
* If the variable is unset, then immediately recreate it unless
|
||
* the whole interpreter is going away.
|
||
*/
|
||
|
||
if (flags & TCL_TRACE_UNSETS) {
|
||
if ((flags & TCL_TRACE_DESTROYED) && !(flags & TCL_INTERP_DESTROYED)) {
|
||
#ifdef SCM_CODE
|
||
STk_tcl_setvar(butPtr->textVarName, butPtr->text,
|
||
(butPtr->string? STk_STRINGIFY: 0), butPtr->env);
|
||
#else
|
||
Tcl_SetVar(interp, butPtr->textVarName, butPtr->text,
|
||
TCL_GLOBAL_ONLY);
|
||
#endif
|
||
|
||
Tcl_TraceVar(interp, butPtr->textVarName,
|
||
TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
|
||
ButtonTextVarProc, clientData);
|
||
}
|
||
return (char *) NULL;
|
||
}
|
||
|
||
#ifdef SCM_CODE
|
||
value = STk_tcl_getvar(butPtr->textVarName, butPtr->env);
|
||
#else
|
||
value = Tcl_GetVar(interp, butPtr->textVarName, TCL_GLOBAL_ONLY);
|
||
#endif
|
||
if (value == NULL) {
|
||
value = "";
|
||
}
|
||
if (butPtr->text != NULL) {
|
||
ckfree(butPtr->text);
|
||
}
|
||
#ifdef BGLK_CODE
|
||
butPtr->text = (char *) ckalloc_atomic((unsigned) (strlen(value) + 1));
|
||
#else
|
||
butPtr->text = (char *) ckalloc((unsigned) (strlen(value) + 1));
|
||
#endif
|
||
strcpy(butPtr->text, value);
|
||
TkpComputeButtonGeometry(butPtr);
|
||
|
||
if ((butPtr->tkwin != NULL) && Tk_IsMapped(butPtr->tkwin)
|
||
&& !(butPtr->flags & REDRAW_PENDING)) {
|
||
Tcl_DoWhenIdle(TkpDisplayButton, (ClientData) butPtr);
|
||
butPtr->flags |= REDRAW_PENDING;
|
||
}
|
||
return (char *) NULL;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* ButtonImageProc --
|
||
*
|
||
* This procedure is invoked by the image code whenever the manager
|
||
* for an image does something that affects the size of contents
|
||
* of an image displayed in a button.
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* Arranges for the button to get redisplayed.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static void
|
||
ButtonImageProc(clientData, x, y, width, height, imgWidth, imgHeight)
|
||
ClientData clientData; /* Pointer to widget record. */
|
||
int x, y; /* Upper left pixel (within image)
|
||
* that must be redisplayed. */
|
||
int width, height; /* Dimensions of area to redisplay
|
||
* (may be <= 0). */
|
||
int imgWidth, imgHeight; /* New dimensions of image. */
|
||
{
|
||
register TkButton *butPtr = (TkButton *) clientData;
|
||
|
||
if (butPtr->tkwin != NULL) {
|
||
TkpComputeButtonGeometry(butPtr);
|
||
if (Tk_IsMapped(butPtr->tkwin) && !(butPtr->flags & REDRAW_PENDING)) {
|
||
Tcl_DoWhenIdle(TkpDisplayButton, (ClientData) butPtr);
|
||
butPtr->flags |= REDRAW_PENDING;
|
||
}
|
||
}
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* ButtonSelectImageProc --
|
||
*
|
||
* This procedure is invoked by the image code whenever the manager
|
||
* for an image does something that affects the size of contents
|
||
* of the image displayed in a button when it is selected.
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* May arrange for the button to get redisplayed.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static void
|
||
ButtonSelectImageProc(clientData, x, y, width, height, imgWidth, imgHeight)
|
||
ClientData clientData; /* Pointer to widget record. */
|
||
int x, y; /* Upper left pixel (within image)
|
||
* that must be redisplayed. */
|
||
int width, height; /* Dimensions of area to redisplay
|
||
* (may be <= 0). */
|
||
int imgWidth, imgHeight; /* New dimensions of image. */
|
||
{
|
||
register TkButton *butPtr = (TkButton *) clientData;
|
||
|
||
/*
|
||
* Don't recompute geometry: it's controlled by the primary image.
|
||
*/
|
||
|
||
if ((butPtr->flags & SELECTED) && (butPtr->tkwin != NULL)
|
||
&& Tk_IsMapped(butPtr->tkwin)
|
||
&& !(butPtr->flags & REDRAW_PENDING)) {
|
||
Tcl_DoWhenIdle(TkpDisplayButton, (ClientData) butPtr);
|
||
butPtr->flags |= REDRAW_PENDING;
|
||
}
|
||
}
|